Optically active dopants to understand the bulk and surface electronic structure of II-VI semiconductor quantum dots and their heterostructures

Abstract

Quantum dots (QDs) cover a broad and interdisciplinary area of research that has been growing rapidly worldwide in the past few decades. QDs have the potential for revolutionizing the ways in which materials and products are created and the range and nature of functionalities that can be accessed. They are already having a significant commercial impact, which will further increase in the future. QDs have extremely small size which is about 10 nm or less. Owing to their interesting characteristics, these materials find a lot of applications in many fields such as optoelectronics,[1-6] biology[7, 8] and so on. QDs have been engineered to have a quantum efficiency of radiative recombination approaching unity at room temperature, far above what has been achieved from bulk materials.[9, 10]